Source : Webster's Revised Unabridged Dictionary (1913)

Snatcher \Snatch"er\, n.
   One who snatches, or takes abruptly.

Source : WordNet®

snatcher
     n 1: a thief who grabs and runs; "a purse snatcher"
     2: someone who unlawfully seizes and detains a victim (usually
        for ransom) [syn: {kidnapper}, {abductor}]